Home / 181,965.92-251,109.57-101,391.72

Finding the Fourth Proportional to 181,965.92, 251,109.57 and 101,391.72

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Solution

The fourth proportional to 181,965.92, 251,109.57 and 101,391.72 is: 139,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,965.92 : 251,109.57 = 101,391.72 : x
  2. Step 2: Convert to fraction form
    181,965.92/251,109.57 = 101,391.72/x
  3. Step 3: Cross multiply
    181,965.92x = 251,109.57 × 101,391.72
  4. Step 4: Simplify right side
    181,965.92x = 25,460,431,210.76
  5. Step 5: Solve for x
    x = 25,460,431,210.76/181,965.92
  6. Step 6: Final answer
    x = 139,918.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.